As the Prince and Princess of Wales mark 15 years of marriage, their public wardrobe choices have evolved into a signature style that favours subtle coordination over overt matching. From their engagement announcement to state visits, their sartorial decisions consistently blend symbolism with diplomatic intent.
Their first major fashion moment came with their engagement announcement at St James’s Palace. Kate wore a navy silk jersey wrap dress by Daniella Issa Helayel, which sold out within hours and is credited with launching the “Kate effect”. The deep blue tone echoed her sapphire engagement ring, formerly owned by Diana, Princess of Wales. William opted for a dark suit and tie, establishing their preference for tonal coordination.
For their wedding at Westminster Abbey, Kate wore a gown by Sarah Burton for Alexander McQueen, featuring hand-cut lace motifs representing the four nations of the UK. William wore the scarlet tunic of the Irish Guards, reflecting his role as Colonel. The contrast between military uniform and couture bridalwear set a formal template for subsequent royal occasions.
During their first overseas tour as a married couple, they adapted their wardrobe to local culture. At the Calgary Stampede, both wore cowboy hats, with Kate in jeans and western-style boots and William in a checked shirt and dark denim. This approach to tour dressing—referencing local traditions without appearing contrived—has remained consistent.
For family moments, such as Prince George’s birth, the couple coordinated in baby blue. Kate wore a light blue polka-dot dress by Jenny Packham, echoing Diana’s style after William’s birth, while William’s blue shirt reinforced the colour theme. On a family ski trip, they adopted practical gear in contrasting colours: Kate in a white jacket with red trousers, William in blue and dark trousers.
At formal events like the 2017 BAFTAs, the couple adhered to classic black-tie dress code. Kate wore a black floral gown by Alexander McQueen, while William chose a traditional tuxedo. In 2018, while pregnant with Prince Louis, Kate attended the BAFTAs in a muted green gown by Jenny Packham, with many attendees wearing black in support of the Time’s Up movement.
